Sweepie is a free filter VST plugin developed by Odo Synths. Compatible OS(s): Windows.
Sweepie is a filter rotating plugin.
https://theodosynthsarchive.wordpress.com/

Free Audio Plugins & Softwares. All the Best VST & Audio Units Available for Free.
Free audio plugins & software for mixing.
SVF2 is a 2-pole State Variable Filter (12 dB/oct) which gives the user the option of using low pass, band pass, band reject, high pass, or peak filter output for each stereo channel. More importantly, the user can morph between filter types as he sees fit, and modify the order in which each filter type morphs into the next.http://www.betabugsaudio.com/
Svep is a stereo modulation filter effect suitable for any sound. All parameters are easily editable in one screen and the clean and responsive user interface encourages creativity. Tweak it to produce anything from old-school phasers to subtle choruses.
Features:
- Low CPU usage.
- Simple but yet powerful user interface.
Features iOS:
- Inter App Audio (IAA) compatible. Works fine with Garageband and other IAA compatible hosts.
- Supports Audiobus 2 including state saving.
- Load / Save presets.
- Remembers IAA hosts (will automatically load last used settings when a host connects).
Svep is developed by musicians for musicians.
http://klevgrand.se
sumo is an effect plugin to make any sound as fat as you like. It’s good for fattening up leads and basses, adding some weight to pads, making your vocals chubby and your drums obese.
https://delamanchavst.wordpress.com
Several low frequency enhancement methods to add a sub octave to bass or drums.
http://www.mda-vst.com/
STSideComp is a straightforward, fully parameterized, compressor with a dedicated sidechain input stereo channel. It is designed as a VST effect for Mac OS X and is specially created for and tested with Ableton Live to create typical French House style ducking effects.
http://www.senortorpedo.de/stsoft/
Striptool is a virtual channel strip offering various types of digital audio processing. As with a real mixing desk, you may use Striptool on all channels of a multitrack project. Originally programmed in assembly language in the early 2000s, Striptool can be inserted on every track of your mixing project.
Striptool V1 is free while Striptool V2 & V3 can be bought online (see www.vb-pack.com). They include everything you need to produce a professional mix : a 4-band parametric EQ, low-pass and high-pass filters, an expander, a de-esser and also input/output level controls…
http://www.vb-audio.com/
StringChorus is a chorus that emulates the circuits used in the old string machines like Solina, Crumar or Farfisa. Get that famous, lush string sound known from Jean Michel Jarre and others with any synth which can create a simple sawtooth waveform.
http://www.wokwave.com
StormGate1 is a rhythmic gate that lets you shape audio with amplitude patterns. Patterns can be freely drawn by hand or with the aid of powerful drawing tools. Within seconds you can transform a static pad into an exciting rhythmic part, create new rhythms from vocals, instruments, noises of any kind. It can also be used to simulate compressor sidechaining.
Features:
- Free drawn amplitude envelope.
- Powerful envelope drawing tools: Free, step, spike and exponential.
- Variable quantization grid.
- 16 patterns with variable length and chaining support.
- Steps of one octave or one octave triplet.
- Intelligent host loop support.
- Advanced synchronization.
- Swing on octaves and sixteenth.
- Volume controls for original and gated audio, with cross-fading control.
- 13 functions for editing the envelope (including randomizations).
http://www.araldfx.com/